Eur. Phys. J. AP
Volume 8, Number 2, September 1999
|Page(s)||189 - 194|
|Published online||15 September 1999|
Ultra-fast optical pyrometry for the measurement of detonating explosive temperature
DGA/Centre d'Etudes de Gramat, 46500 Gramat, France
2 ENSMA/Laboratoire de Combustion et Détonique, 86960 Futuroscope, France
Revised: 26 July 1999
Accepted: 13 September 1999
Published online: 15 September 1999
This paper describes a multiwavelength optical pyrometer designed to measure, with a 3 ns rise-time, the evolution of a fast varying temperature as can be encountered in the detonation products of an explosive. By measuring six luminance temperatures within the visible and near infra-red spectra, this apparatus allows to determine a true surface temperature over the range 1500 to 6000 K. It has been used for studies of detonation in nitromethane, a transparent liquid explosive.
PACS: 42.15.Eq – Optical system design / 47.40.Nm – Shock-wave interactions and shock effects / 82.40.Py – Flames, combustion, and explosions
© EDP Sciences, 1999
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